背景:握力(HGS)是肌肉力量的指标,用于诊断肌肉减少症,营养不良,和身体虚弱以及恢复。通常,使用最大HGS值;然而,最近的证据表明,探索基于力-时间曲线提供的新指标,以实现对肌肉功能的更全面评估。因此,目标是确定超过最大HGS的HGS曲线的指标,根据力-时间曲线,并将有关其应用于各种类型样品的知识系统化,健康问题,和物理性能。
方法:进行了系统评价,包括研究参与者用数字或适应性测力计评估HGS。结果测量是从力-时间曲线计算的HGS曲线指标。
结果:共纳入15项研究,并确定了以下指标:抓握疲劳,疲劳指数,疲劳率,抗疲劳性,最大自愿收缩80%的时间,高原变异系数,达到最大值的时间,T-90%,释放速率,功率因数,抓地力工作,平均综合面积,耐力,周期持续时间,周期之间的时间,最大和最小力-速度,抓地力的速率,最终力,拐点,综合面积,次最大控制,和响应时间。
结论:可以通过数字或适应性测力计评估基于力-时间曲线的各种指标。未来的研究应该分析这些指标,以了解它们对肌肉功能评估的影响。为了规范评估程序,为了确定临床相关措施,并阐明其在临床实践中的意义。
BACKGROUND: Handgrip strength (HGS) is an indicator of muscular strength, used in the diagnosis of sarcopenia, undernutrition, and physical frailty as well as recovery. Typically, the maximum HGS value is used; however, recent evidence suggests the exploration of new indicators provided based on the force-time curve to achieve a more comprehensive assessment of muscle function. Therefore, the objective was to identify indicators of the HGS profile beyond maximum HGS, based on force-time curves, and to systematize knowledge about their applications to various types of samples, health issues, and physical performance.
METHODS: A systematic review was performed including studies whose participants\' HGS was assessed with a digital or adapted dynamometer. The outcome measures were HGS profile indicators calculated from the force-time curve.
RESULTS: a total of 15 studies were included, and the following indicators were identified: grip fatigue, fatigability index, fatigue rate, fatigue resistance, time to 80% maximal voluntary contraction, plateau coefficient of variability, time to maximum value, T-90%, release rate, power factor, grip work, average integrated area, endurance, cycle duration, time between cycles, maximum and minimum force-velocity, rate of grip force, final force, inflection point, integrated area, submaximal control, and response time.
CONCLUSIONS: Various indicators based on the force-time curve can be assessed through digital or adapted dynamometers. Future research should analyze these indicators to understand their implications for muscle function assessment, to standardize evaluation procedures, to identify clinically relevant measures, and to clarify their implications in clinical practice.